package com.itheima.reggie.controller;

import com.baomidou.mybatisplus.core.conditions.query.LambdaQueryWrapper;
import com.baomidou.mybatisplus.extension.plugins.pagination.Page;
import com.itheima.reggie.common.R;
import com.itheima.reggie.dto.DishDto;
import com.itheima.reggie.dto.SetmealDto;
import com.itheima.reggie.pojo.Category;
import com.itheima.reggie.pojo.Setmeal;
import com.itheima.reggie.service.CategoryService;
import com.itheima.reggie.service.SetmealDishService;
import com.itheima.reggie.service.SetmealService;
import lombok.extern.slf4j.Slf4j;
import org.springframework.beans.BeanUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.context.annotation.Bean;
import org.springframework.web.bind.annotation.*;

import java.util.List;
import java.util.Set;

@RestController // 作用：将下面的类中的方法返回的数据，以 json 的格式返回给前端
@RequestMapping("/setmeal") // 作用：将下面的类中的方法映射到 /setmeal 这个路径下
@Slf4j // 作用：自动创建一个 log 变量，可以直接使用
public class SetmealController {

    @Autowired
    private SetmealService setmealService;

    @Autowired
    private SetmealDishService setmealDishService;

    @Autowired
    private CategoryService categoryService;

    @GetMapping("/page")
    public R<Page> page(int page, int pageSize, String name){
        log.info("分页查询套餐信息");
        //分页构造器
        Page<Setmeal> pageInfo = new Page<>(page,pageSize);
        Page<SetmealDto> setmealDtoPage = new Page<>();
        //查询条件构造器
        LambdaQueryWrapper<Setmeal> queryWrapper = new LambdaQueryWrapper<>();
        //添加过滤条件
        queryWrapper.like(name != null,Setmeal::getName,name);
        //添加排序条件
        queryWrapper.orderByDesc(Setmeal::getUpdateTime);
        //分页查询
        setmealService.page(pageInfo,queryWrapper);

        //对象拷贝
        BeanUtils.copyProperties(pageInfo,setmealDtoPage,"records");
        List<Setmeal> records = pageInfo.getRecords();
        List<SetmealDto> list = records.stream().map((item)->{
            SetmealDto setmealDto = new SetmealDto();
            BeanUtils.copyProperties(item,setmealDto);
            //分类id
            Long categoryId = item.getCategoryId();
            //根据分类id查询分类对象
            Category category = categoryService.getById(categoryId);
            if (category != null){
                //分类名称
                String categoryName = category.getName();
                setmealDto.setCategoryName(categoryName);
            }
            return setmealDto;
        }).toList();
        setmealDtoPage.setRecords(list);
        return R.success(setmealDtoPage);
    }

    @PostMapping
    public R<String> save(@RequestBody SetmealDto setmealDto){
        log.info("新增套餐信息:{}",setmealDto);
        setmealService.saveWithDish(setmealDto);
        return R.success("新增成功");
    }

    @DeleteMapping
    public R<String> delete(@RequestParam List<Long> ids){
        log.info("删除套餐信息:{}",ids);
        setmealService.removeWithDish(ids);
        return R.success("删除成功");
    }

    @PostMapping("/status/{i}")
    public R<String> updateStatus(@PathVariable Integer i, @RequestParam List<Long> ids){
        log.info("修改套餐状态:{}",ids);
        setmealService.updateStatus(ids,i);
        return R.success("修改成功");
    }

    @PutMapping
    public R<String> update(@RequestBody SetmealDto setmealDto){
        log.info("修改套餐信息:{}",setmealDto);
        setmealService.updateWithDish(setmealDto);
        return R.success("修改成功");
    }

    /**
     * 根据id查询套餐信息
     * @param id
     * @return
     */
    @GetMapping("/{id}")
    public R<SetmealDto> getById(@PathVariable Long id){
        log.info("根据id查询套餐信息:{}",id);
        SetmealDto setmealDto = setmealService.getByIdWithDish(id);
        return R.success(setmealDto);
    }

    /**
     * 根据条件查询套餐数据
     * @param setmeal
     * @return
     */
    @GetMapping("/list")
    public R<List<Setmeal>> list(Setmeal setmeal){
        LambdaQueryWrapper<Setmeal> queryWrapper = new LambdaQueryWrapper<>();
        queryWrapper.eq(setmeal.getCategoryId()!=null, Setmeal::getCategoryId,setmeal.getCategoryId());
        queryWrapper.eq(setmeal.getStatus()!=null, Setmeal::getStatus,setmeal.getStatus());
        queryWrapper.orderByDesc(Setmeal::getUpdateTime);

        List<Setmeal> list = setmealService.list(queryWrapper);
        return R.success(list);
    }
}
